Evidence map›Paper›PMID 21558310›Full record

ArticleEndocrinology2011

Lack of maternal glutamate cysteine ligase modifier subunit (Gclm) decreases oocyte glutathione concentrations and disrupts preimplantation development in mice.

Brooke N Nakamura, Thomas J Fielder, Yvonne D Hoang, Jinhwan Lim, Lisa A McConnachie, Terrance J Kavanagh, Ulrike Luderer

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 59 citations in OpenAlex.

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  19. The Role of Antioxidant Enzymes in the Ovaries.Oxidative medicine and cellular longevity · 2017
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Brooke N NakamuraDepartment of Medicine, University of California Irvine, Irvine, California 92617, USA.
Thomas J Fielder
Yvonne D Hoang
Jinhwan Lim
Lisa A McConnachie
Terrance J Kavanagh
Ulrike Luderer
University of California, Irvine · USUniversity of Washington · US

Funding

Univ.of Calif., Irvine Cancer Center Support GrantP30CA062203 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI Christine Hui · 1994 to 2026
$57.9M
XENOBIOTIC BIOTRANSFORMATION AND DISPOSITIONP30ES007033 · NIEHS · UNIVERSITY OF WASHINGTON · PI ALI SHOJAIE · 1995 to 2026
$42.5M
Glutamate-L-cysteine ligase expression and liver injuryR01ES010849 · NIEHS · UNIVERSITY OF WASHINGTON · PI KAVANAGH, TERRANCE J · 2002 to 2004
$783k
Oxidative stress drives ovarian aging: modification by genetics and environmentR21AG032087 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI LUDERER, ULRIKE · 2008 to 2009
$334k
NCI NIH HHS CA062203NCI NIH HHS P30 CA062203NIA NIH HHS AG032087NIA NIH HHS R21 AG032087NIEHS NIH HHS ES07033NIEHS NIH HHS ES10849NIEHS NIH HHS P30 ES007033NIEHS NIH HHS R01 ES010849
6 · The paper itself

Abstract

Glutathione (GSH) is the most abundant intracellular thiol and an important regulator of cellular redox status. Mice that lack the modifier subunit of glutamate cysteine ligase (Gclm), the rate-limiting enzyme in GSH synthesis, have decreased GSH synthesis. Nicotinamide nucleotide transhydrogenase, an inner mitochondrial membrane protein, catalyzes the interconversion of reduced nicotinamide adenine dinucleotide and reduced nicotinamide adenine dinucleotide phosphate; reduced nicotinamide adenine dinucleotide phosphate is required for reduction of GSH disulfide. Previous work supports roles for GSH in preimplantation development. We hypothesized that Gclm-/- mice have increased preimplantation embryonic mortality and that this effect is enhanced by absence of a functioning Nnt gene. Gclm-/- females produced significantly fewer pups per litter than Gclm+/+ littermates. Numbers of oocytes ovulated in a natural estrous cycle or upon superovulation did not differ by genotype. Fewer uterine implantation sites were observed in the Gclm-/- females. Prepubertal Gclm-/- and Gclm+/+ females were superovulated, then mated overnight with a Gclm+/+ male. At 0.5 d postcoitum, Gclm-/- females had significantly lower percentages of zygotes with two pronuclei and higher percentages of zygotes with one pronucleus than Gclm+/+ or Gclm+/- females. At 3.5 d postcoitum, a significantly lower percentage of blastocyst stage embryos was recovered from uteri of Gclm-/- females than Gclm+/+ females. Embryonic development to the blastocyst stage, but not the two-cell stage, was significantly decreased after in vitro fertilization of oocytes from Gclm-/- females compared with Gclm+/+ females. The Nnt mutation did not enhance the effects of Gclm genotype on female fertility. These results demonstrate critical roles for maternal GSH in supporting normal preimplantation development.

Indexed as

EctogenesisAnimalsBlastocystEmbryo ImplantationFemaleFertilization in VitroGlutamate-Cysteine LigaseGlutathioneInfertility, FemaleLitter SizeMaleMiceMice, Inbred C57BLMice, KnockoutMice, Mutant StrainsMitochondrial ProteinsGCLM protein, mouseGlutamate-Cysteine LigaseGlutathioneMitochondrial ProteinsNADP Transhydrogenase, AB-SpecificNADP TranshydrogenasesNnt protein, mouseProtein Subunits

Identifiers

PMID21558310
PMCPMC3115613
OpenAlexW2112276431

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.